Current File : /home/jalalj2hb/www/wp-content/plugins/ninja-forms/includes/Libraries/Session/wp-session.php
<?php
/**
* WordPress session managment.
*
* Standardizes WordPress session data and uses either database transients or in-memory caching
* for storing user session information.
*
* @package WordPress
* @subpackage Session
* @since 3.7.0
*/
// Exit if accessed directly
if ( ! defined( 'ABSPATH' ) ) exit;
/**
* Return the current cache expire setting.
*
* @return int
*/
function wp_session_cache_expire() {
$wp_session = WP_Session::get_instance();
return $wp_session->cache_expiration();
}
/**
* Alias of wp_session_write_close()
*/
function wp_session_commit() {
wp_session_write_close();
}
/**
* Load a JSON-encoded string into the current session.
*
* @param string $data
*/
function wp_session_decode( $data ) {
$wp_session = WP_Session::get_instance();
return $wp_session->json_in( $data );
}
/**
* Encode the current session's data as a JSON string.
*
* @return string
*/
function wp_session_encode() {
$wp_session = WP_Session::get_instance();
return $wp_session->json_out();
}
/**
* Regenerate the session ID.
*
* @param bool $delete_old_session
*
* @return bool
*/
function wp_session_regenerate_id( $delete_old_session = false ) {
$wp_session = WP_Session::get_instance();
$wp_session->regenerate_id( $delete_old_session );
return true;
}
/**
* Start new or resume existing session.
*
* Resumes an existing session based on a value sent by the _wp_session cookie.
*
* @return bool
*/
function wp_session_start() {
$wp_session = WP_Session::get_instance();
do_action( 'wp_session_start' );
return $wp_session->session_started();
}
add_action( 'plugins_loaded', 'wp_session_start' );
/**
* Return the current session status.
*
* @return int
*/
function wp_session_status() {
$wp_session = WP_Session::get_instance();
if ( $wp_session->session_started() ) {
return PHP_SESSION_ACTIVE;
}
return PHP_SESSION_NONE;
}
/**
* Unset all session variables.
*/
function wp_session_unset() {
$wp_session = WP_Session::get_instance();
$wp_session->reset();
}
/**
* Write session data and end session
*/
function wp_session_write_close() {
$wp_session = WP_Session::get_instance();
$wp_session->write_data();
do_action( 'wp_session_commit' );
}
add_action( 'shutdown', 'wp_session_write_close' );
/**
* Clean up expired sessions by removing data and their expiration entries from
* the WordPress options table.
*
* This method should never be called directly and should instead be triggered as part
* of a scheduled task or cron job.
*/
function wp_session_cleanup() {
global $wpdb;
if ( defined( 'WP_SETUP_CONFIG' ) ) {
return;
}
if ( ! defined( 'WP_INSTALLING' ) ) {
$expiration_keys = $wpdb->get_results( "SELECT option_name, option_value FROM $wpdb->options WHERE option_name LIKE '_wp_session_expires_%'" );
$now = current_time( 'timestamp' );
$expired_sessions = array();
foreach( $expiration_keys as $expiration ) {
// If the session has expired
if ( $now > intval( $expiration->option_value ) ) {
// Get the session ID by parsing the option_name
$session_id = substr( $expiration->option_name, 20 );
if( (int) -1 === (int) $session_id || ! preg_match( '/^[a-f0-9]{32}$/', $session_id ) ) {
continue;
}
$expired_sessions[] = $expiration->option_name;
$expired_sessions[] = esc_sql( "_wp_session_$session_id" );
}
}
// Delete all expired sessions in a single query
if ( ! empty( $expired_sessions ) ) {
$option_names = implode( "','", $expired_sessions );
$wpdb->query( "DELETE FROM $wpdb->options WHERE option_name IN ('$option_names')" );
}
}
// Allow other plugins to hook in to the garbage collection process.
do_action( 'wp_session_cleanup' );
}
add_action( 'wp_session_garbage_collection', 'wp_session_cleanup' );
/**
* Register the garbage collector as a twice daily event.
*/
function wp_session_register_garbage_collection() {
if ( ! wp_next_scheduled( 'wp_session_garbage_collection' ) ) {
wp_schedule_event( current_time( 'timestamp' ), 'twicedaily', 'wp_session_garbage_collection' );
}
}
add_action( 'wp', 'wp_session_register_garbage_collection' );
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